document.write( "Question 951138: John is twice as as old as mary.If sum of sqeare of their ages is 125,find mary age. \n" ); document.write( "

Algebra.Com's Answer #580955 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"J=2M\"$
\n" ); document.write( " $\"J%5E2%2BM%5E2=125\"$
\n" ); document.write( "Substituting,
\n" ); document.write( " $\"%282M%29%5E2%2BM%5E2=125\"$
\n" ); document.write( " $\"4M%5E2%2BM%5E2=125\"$
\n" ); document.write( " $\"5M%5E2=125\"$
\n" ); document.write( " $\"M%5E2=25\"$
\n" ); document.write( " $\"M=5\"$
\n" ); document.write( "So then,
\n" ); document.write( " $\"J=2%285%29\"$
\n" ); document.write( " $\"J=10\"$
\n" ); document.write( " \n" ); document.write( "

\n" );